He is the son of Maryline (Poole) and actor Jim Hutton (Dana James Hutton). Timothy has a son, documentary filmmaker Noah Hutton, with his first wife, actress and producer Debra Winger; and a son with his second wife, illustrator Aurore Giscard d’Estaing. Aurore’s uncle is French president Valéry Giscard d’Estaing.

Timothy’s paternal grandfather was Col. Thomas R. “Tom” Hutton (Thomas Radcliffe Hutton, the son of Thomas Burnie Hutton and Henrietta Radcliffe Young). Timothy’s grandfather Thomas was managing editor, and editor, of The Binghamton Press; he was born in Wyoming. Henrietta was the daughter of Charles Young and Sophia Radcliff.

Timothy’s paternal grandmother was Helen-Mae C. (Scottebo/Scotteabo/Scottobo) Hutton Ryan (the daughter of Lewis Scottebo/Scotteabo and Ellen/Ella T. Dacey). Lewis was born in Iowa, the son of Reier Olsen Skattebo and Anne/Anna/Annie Marie Olsdr Kulterstad/Brufladt, who were Norwegian. Ellen was born in New York, the daughter of Irish parents, Patrick Dacey and Ellen.

Timothy’s maternal grandfather was Arthur Barnard/French Poole (the son of Arthur French/Frank/S. Poole and Marylou Emeline/Maryline Barnard). Timothy’s great-grandfather Arthur was the son of Arthur Atkinson Poole and Laura Virginia French. Marylou was the daughter of Austin Denny Barnard and Ellen Sarah Lehman.

Timothy’s maternal grandmother was Helen Noyes Burdick (the daughter of Charles Noyes Burdick and Myra Adelle Cottrell). Charles was the son of Alfred Bailey Burdick and Lydia Lucina Crandall. Myra was the daughter of James Berry Cottrell and Ann Alina Beebe.